Soft zvinhu
Calcite, Dolomite, Kaolin, Barite, Goldstone, Talc, Zircon Sand, Wollastonite, Coal powder, Light karusiyamu Carbonate, Mica, Bauxite, Attapulgite, Brucite, Bentonite, Garnet, Magnesite, Andalusite, Pyrophyllite, Potassium Feldspar, Diopside, Rectorite, Diatomite , Gypsum, Pearlite etc.
Hard zvinhu
Carborundum, Boron Carbide, White Corundum, Zirconia, Cerium oxide, High Temperature Alumina, nesilicon Nitride, Boron Nnitride, Brown Fused Alumina etc.
Dzidza ZVIMWE